(3-Chloro-4-hydroxyphenyl)(phenyl)methanone CAS 55191-20-3
| CAS No. | 55191-20-3 |
| Molecular Formula | C13H9ClO2 |
| Molecular Weight | 232.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (3-Chloro-4-hydroxyphenyl)(phenyl)methanone.
(3-Chloro-4-hydroxyphenyl)(phenyl)methanone (CAS 55191-20-3), molecular formula C13H9ClO2 and molecular weight 232.66 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, (3-Chloro-4-hydroxyphenyl)(phenyl)methanone is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 232.66 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures (3-Chloro-4-hydroxyphenyl)(phenyl)methanone under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C13H9ClO2 |
| Molecular Weight | 232.66 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 5-Chloro-3-phenylbenzoic acid (CAS 1082283-43-9)
- 7-chloro-4-oxo-chromene-2-carboxylic acid (CAS 114741-22-9)
- 3'-Chloro-4'-hydroxy-[1,1'-biphenyl]-3-carbaldehyde (CAS 1176562-05-2)
- 5'-Chloro-2'-hydroxy-[1,1'-biphenyl]-3-carbaldehyde (CAS 1181269-88-4)
- 5-Chloro-4-hydroxy-[1,1'-biphenyl]-3-carbaldehyde (CAS 1248288-65-4)
- 3'-Chloro-5'-hydroxy-[1,1'-biphenyl]-3-carbaldehyde (CAS 1261960-78-4)
- 3'-Chloro-2'-hydroxy-[1,1'-biphenyl]-3-carbaldehyde (CAS 1263376-25-5)
- 2'-Chloro-[1,1'-biphenyl]-2-carboxylicacid (CAS 14498-95-4)
Recommended Standards
- 2-Chloro-[1,1'-biphenyl]-3-carboxylic acid (CAS 19240-62-1)
- [1,1'-Biphenyl]-4-yl carbonochloridate (CAS 3185-73-7)
- Fenofibrate Impurity N3 (CAS 1871-38-1)
- 2-(3-Chlorophenyl)benzoic Acid (CAS 73178-79-7)
- (2S,4S)-Methyl 4-(((benzyloxy)carbonyl)amino)pyrrolidine-2-carboxylate (CAS 1128076-49-2)
- N,N-Dimethyl-5-(pyrrolidin-2-yl)-1,2,4-oxadiazol-3-amine hydrochloride (CAS 2138004-41-6)
- 2-Chloro-4-iodoquinazoline (CAS 1529747-20-3)
- 4-((4-Bromonaphthalen-1-yl)sulfonyl)morpholine (CAS 333434-99-4)
- Dibenzo[a,i]pyrene[5,8]quinone (CAS 3302-52-1)
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- 302798-54-5 (Leu31,Pro34)-Neuropeptide Y (13-36) (human, rat) MFCD00672463 (CAS 302798-54-5)
Why CATO?
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